Dance Pads
Used by many Dance Games
over many different systems most famous is the Dance Dance Revolution
series.
Steam Input support
They are normally interpreted as a generic USB gamepad. Not all might work it can depend on controller age.
Linux Kernel Support
Yes, in most cases depending on controller age they are recognized as a normal USB gamepad.
Emulator usecase
MAME
Dolphin
RetroArch
Duckstation
PSCX2
RPCS3
PC-Systems
How to configure
WIP